<template>
  <div :class="className" :style="{ height: height, width: width }" />
</template>

<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '400px'
    }
  },
  data() {
    return {
      chart: null
    }
  },
  mounted() {
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    // data = [
    //   {
    //     'city': "深圳市",
    //     'count': 0
    //   },
    // ]
    initChart(data) {
      this.chart = echarts.init(this.$el, 'macarons')
      const seriesData = []
      const legendData = data.map(item => {
        seriesData.push({ value: item.passCount, name: item.city })
        return item.city
      })
      this.chart.setOption({
        tooltip: {
          trigger: 'item',
          formatter: '{b} : {c} ({d}%)'
        },
        legend: {
          left: 'center',
          bottom: '10',
          data: legendData
        },
        series: [
          {
            name: '',
            type: 'pie',
            roseType: 'radius',
            radius: [15, 95],
            center: ['50%', '50%'],
            data: seriesData,
            animationEasing: 'cubicInOut',
            animationDuration: 2600
          }
        ]
      })
    }
  }
}
</script>
